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Date: Fri, 13 Jun 2014 18:05:40 +0530
From: Amit Shah <amit.shah@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH RESEND v4 17/18] target-i386: block
 migration and savevm if invariant tsc is exposed
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To: Eduardo Habkost <ehabkost@redhat.com>
Cc: Juan Quintela <quintela@redhat.com>, Marcelo Tosatti <mtosatti@redhat.com>, qemu-devel@nongnu.org, Andreas =?iso-8859-1?Q?F=E4rber?= <afaerber@suse.de>

On (Tue) 10 Jun 2014 [11:43:29], Eduardo Habkost wrote:
> On Tue, Jun 10, 2014 at 12:42:14PM +0530, Amit Shah wrote:
> > On (Wed) 14 May 2014 [16:30:09], Eduardo Habkost wrote:
> > > From: Marcelo Tosatti <mtosatti@redhat.com>
> > > 
> > > Invariant TSC documentation mentions that "invariant TSC will run at a
> > > constant rate in all ACPI P-, C-. and T-states".
> > > 
> > > This is not the case if migration to a host with different TSC frequency
> > > is allowed, or if savevm is performed. So block migration/savevm.
> > 
> > Can you add this to the release notes, please?
> 
> It can be mentioned as new feature, sure, but note that it shouldn't
> affect any existing users, except the ones who decide to explicitly use
> "-cpu ...,+invtsc" or "-cpu host,migratable=no" on the command line.

Ah, yes; won't break anything.  Just that a relnote would be good for
the new functionality being added.


		Amit